Random Samples of Four Items Are Selected from a Manufacturing

question 93

Multiple Choice

Random samples of four items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples, ΣX = 15,350 and ΣR = 411.4. To construct a range chart, what is the lower control limit (LCL) for the range?

• A) 602.004
• B) 411.400
• C) 625.666
• D) 0.00

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Definitions:

Preeclampsia

A pregnancy complication characterized by high blood pressure and signs of damage to another organ system, often the liver or kidneys.

Striae Gravidarum

Stretch marks that occur on the abdomen, thighs, and breasts during pregnancy due to rapid stretching of the skin.

Postpartum Psychosis

A severe mental illness that can occur in the first few weeks after childbirth, characterized by hallucinations, delusions, and irrational behavior.

Postpartum Depression

A type of depression that can occur after childbirth, characterized by sadness, anxiety, and fatigue.